WO2008024992A3 - Système d'amélioration d'imagerie médicale - Google Patents

Système d'amélioration d'imagerie médicale Download PDF

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Publication number
WO2008024992A3
WO2008024992A3 PCT/US2007/076789 US2007076789W WO2008024992A3 WO 2008024992 A3 WO2008024992 A3 WO 2008024992A3 US 2007076789 W US2007076789 W US 2007076789W WO 2008024992 A3 WO2008024992 A3 WO 2008024992A3
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WO
WIPO (PCT)
Prior art keywords
frames
bolus
mask
differential image
dye
Prior art date
Application number
PCT/US2007/076789
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English (en)
Other versions
WO2008024992A2 (fr
Inventor
Jasjit S Suri
Dinesh Kumar
Original Assignee
Eigen
Jasjit S Suri
Dinesh Kumar
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Eigen, Jasjit S Suri, Dinesh Kumar filed Critical Eigen
Publication of WO2008024992A2 publication Critical patent/WO2008024992A2/fr
Publication of WO2008024992A3 publication Critical patent/WO2008024992A3/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/50—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications
    • A61B6/504—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications for diagnosis of blood vessels, e.g. by angiography
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/48—Diagnostic techniques
    • A61B6/481—Diagnostic techniques involving the use of contrast agents
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/52—Devices using data or image processing specially adapted for radiation diagnosis
    • A61B6/5211—Devices using data or image processing specially adapted for radiation diagnosis involving processing of medical diagnostic data
    • A61B6/5229—Devices using data or image processing specially adapted for radiation diagnosis involving processing of medical diagnostic data combining image data of a patient, e.g. combining a functional image with an anatomical image
    • A61B6/5235—Devices using data or image processing specially adapted for radiation diagnosis involving processing of medical diagnostic data combining image data of a patient, e.g. combining a functional image with an anatomical image combining images from the same or different ionising radiation imaging techniques, e.g. PET and CT
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/52—Devices using data or image processing specially adapted for radiation diagnosis
    • A61B6/5258—Devices using data or image processing specially adapted for radiation diagnosis involving detection or reduction of artifacts or noise
    • A61B6/5264—Devices using data or image processing specially adapted for radiation diagnosis involving detection or reduction of artifacts or noise due to motion
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/50—Image enhancement or restoration using two or more images, e.g. averaging or subtraction
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/10—Image acquisition modality
    • G06T2207/10072—Tomographic images
    • G06T2207/10076—4D tomography; Time-sequential 3D tomography
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/10—Image acquisition modality
    • G06T2207/10116—X-ray image
    • G06T2207/10121—Fluoroscopy
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/20—Special algorithmic details
    • G06T2207/20212—Image combination
    • G06T2207/20224—Image subtraction
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/30—Subject of image; Context of image processing
    • G06T2207/30004—Biomedical image processing
    • G06T2207/30021—Catheter; Guide wire

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Medical Informatics (AREA)
  • Physics & Mathematics (AREA)
  • Biomedical Technology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Biophysics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Veterinary Medicine (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • High Energy & Nuclear Physics (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Vascular Medicine (AREA)
  • Dentistry (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Apparatus For Radiation Diagnosis (AREA)

Abstract

L'invention concerne un système d'imagerie médicale qui permet de guider, en temps réel, un cathéter, par exemple, destiné à être utilisé dans une procédure médicale. Selon un agencement, un système d'imagerie est fourni, qui génère une série d'images (19) ou de trames pendant une procédure d'injection de colorant. Le système est opérationnel pour détecter automatiquement (20) des trames qui comprennent du colorant (trames de bolus) et des trames qui sont exemptes de colorant (trames de masque (21)). Les séries d'images peuvent être enregistrées ensemble (22) pour fournir une trame de référence commune et prendre ainsi en compte un mouvement. Afin d'améliorer les qualités signal sur bruit, des moyennes sont établies pour les ensembles de trames de masque et de trames de bolus respectifs. Une image différentielle (23) est générée en utilisant les trames de masque moyen et de bolus moyen. Le contraste de l'image différentielle peut être amélioré (24). Le système permet une correction de mouvement, une réduction de bruit et/ou une amélioration d'une image différentielle en temps réel.
PCT/US2007/076789 2006-08-25 2007-08-24 Système d'amélioration d'imagerie médicale WO2008024992A2 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US82353606P 2006-08-25 2006-08-25
US60/823,536 2006-08-25
US11/609,743 US20080051648A1 (en) 2006-08-25 2006-12-12 Medical image enhancement system
US11/609,743 2006-12-12

Publications (2)

Publication Number Publication Date
WO2008024992A2 WO2008024992A2 (fr) 2008-02-28
WO2008024992A3 true WO2008024992A3 (fr) 2008-06-26

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/076789 WO2008024992A2 (fr) 2006-08-25 2007-08-24 Système d'amélioration d'imagerie médicale

Country Status (2)

Country Link
US (1) US20080051648A1 (fr)
WO (1) WO2008024992A2 (fr)

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WO2008024992A2 (fr) 2008-02-28
US20080051648A1 (en) 2008-02-28

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